﻿using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
using YuuzleComic.IDAL;
using YuuzleComic.DBUtility;//Please add references
namespace YuuzleComic.SQLServerDAL
{
	/// <summary>
	/// 数据访问类:class
	/// </summary>
	public partial class ycclass:Iycclass
	{
        public ycclass()
		{}
		#region  Method

		/// <summary>
		/// 是否存在该记录
		/// </summary>
		public bool Exists()
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) from class");
			strSql.Append(" where ");
			SqlParameter[] parameters = {
};

			return DbHelperSQL.Exists(strSql.ToString(),parameters);
		}


		/// <summary>
		/// 增加一条数据
		/// </summary>
		public int Add(YuuzleComic.Model.ycclass model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("insert into class(");
            strSql.Append("classname,filename)");
			strSql.Append(" values (");
            strSql.Append("@classname,@filename)");
			strSql.Append(";select @@IDENTITY");
			SqlParameter[] parameters = {
					new SqlParameter("@classname", SqlDbType.VarChar,50),
					new SqlParameter("@filename", SqlDbType.VarChar,50)};
			parameters[0].Value = model.classname;
			parameters[1].Value = model.filename;

			object obj = DbHelperSQL.GetSingle(strSql.ToString(),parameters);
			if (obj == null)
			{
				return 0;
			}
			else
			{
				return Convert.ToInt32(obj);
			}
		}
		/// <summary>
		/// 更新一条数据
		/// </summary>
		public bool Update(YuuzleComic.Model.ycclass model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("update class set ");
			strSql.Append("classname=@classname,");
			strSql.Append("filename=@filename");
			strSql.Append(" where id=@id");
			SqlParameter[] parameters = {
					new SqlParameter("@classname", SqlDbType.VarChar,50),
					new SqlParameter("@filename", SqlDbType.VarChar,50),
					new SqlParameter("@id", SqlDbType.Int,4)};
			parameters[0].Value = model.classname;
			parameters[1].Value = model.filename;
			parameters[2].Value = model.id;

			int rows=DbHelperSQL.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}

		/// <summary>
		/// 删除一条数据
		/// </summary>
		public bool Delete(int id)
		{
			
			StringBuilder strSql=new StringBuilder();
			strSql.Append("delete from class ");
			strSql.Append(" where id=@id");
			SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4)
};
			parameters[0].Value = id;

			int rows=DbHelperSQL.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}
		/// <summary>
		/// 删除一条数据
		/// </summary>
		public bool DeleteList(string idlist )
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("delete from class ");
			strSql.Append(" where id in ("+idlist + ")  ");
			int rows=DbHelperSQL.ExecuteSql(strSql.ToString());
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}


		/// <summary>
		/// 得到一个对象实体
		/// </summary>
		public YuuzleComic.Model.ycclass GetModel(int id)
		{
			
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select  top 1 id,classname,filename from class ");
			strSql.Append(" where id=@id");
			SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4)
};
			parameters[0].Value = id;

			YuuzleComic.Model.ycclass model=new YuuzleComic.Model.ycclass();
			DataSet ds=DbHelperSQL.Query(strSql.ToString(),parameters);
			if(ds.Tables[0].Rows.Count>0)
			{
				if(ds.Tables[0].Rows[0]["id"].ToString()!="")
				{
					model.id=int.Parse(ds.Tables[0].Rows[0]["id"].ToString());
				}
				model.classname=ds.Tables[0].Rows[0]["classname"].ToString();
				model.filename=ds.Tables[0].Rows[0]["filename"].ToString();
				return model;
			}
			else
			{
				return null;
			}
		}

		/// <summary>
		/// 获得数据列表
		/// </summary>
		public DataSet GetList(string strWhere)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select id,classname,filename ");
			strSql.Append(" FROM class ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			return DbHelperSQL.Query(strSql.ToString());
		}

		/// <summary>
		/// 获得前几行数据
		/// </summary>
		public DataSet GetList(int Top,string strWhere,string filedOrder)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select ");
			if(Top>0)
			{
				strSql.Append(" top "+Top.ToString());
			}
			strSql.Append(" id,classname,filename ");
			strSql.Append(" FROM class ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			strSql.Append(" order by " + filedOrder);
			return DbHelperSQL.Query(strSql.ToString());
		}

		/*
		/// <summary>
		/// 分页获取数据列表
		/// </summary>
		public DataSet GetList(int PageSize,int PageIndex,string strWhere)
		{
			SqlParameter[] parameters = {
					new SqlParameter("@tblName", SqlDbType.VarChar, 255),
					new SqlParameter("@fldName", SqlDbType.VarChar, 255),
					new SqlParameter("@PageSize", SqlDbType.Int),
					new SqlParameter("@PageIndex", SqlDbType.Int),
					new SqlParameter("@IsReCount", SqlDbType.Bit),
					new SqlParameter("@OrderType", SqlDbType.Bit),
					new SqlParameter("@strWhere", SqlDbType.VarChar,1000),
					};
			parameters[0].Value = "class";
			parameters[1].Value = "id";
			parameters[2].Value = PageSize;
			parameters[3].Value = PageIndex;
			parameters[4].Value = 0;
			parameters[5].Value = 0;
			parameters[6].Value = strWhere;	
			return DbHelperSQL.RunProcedure("UP_GetRecordByPage",parameters,"ds");
		}*/

		#endregion  Method
	}
}

